"blinker" in the noun sense
1. blinker, flasher
a light that flashes on and off used as a signal or to send messages
2. blinker, turn signal, turn indicator, trafficator
a blinking light on a motor vehicle that indicates the direction in which the vehicle is about to turn
3. winker, blinker, blinder
blind consisting of a leather eyepatch sewn to the side of the halter that prevents a horse from seeing something on either side
"blinker" in the verb sense
put blinders on (a horse)
Source: WordNet® (An amazing lexical database of English)
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